360° ThermaQuilt 3-in-1 Blanket, Sleeping Bag & Hammock Underquilt

$ 79.95

Color: Red/Crimson

Don’t let cool weather keep you inside when you can turn your hammock into a warm, cozy cocoon with our versatile hammock underquilt and overquilt. The Grand Trunk 360° ThermaQuilt completely wraps around any hammock and cinches at the ends to keep the warm air in and cold air out. Or lay it flat to use as a tech blanket or traditional sleeping bag. Our underquilt works with almost any camping, outdoor or backyard hammock. Zip into warmth and stretch out underneath the stars; you’ll be well-rested for the new day’s journey! The Thermaquilt is a summer rated sleeping bag for cool summer nights.


  • Versatile design can be used as hammock underquilt/overquilt, sleeping bag or blanket
  • Stay warm & dry in temperatures as low as 40 degrees
  • Cord tunnel with cinch lock to keep the breeze out
  • Water Resistant

Tech Specs

  • Temperature Rating: 50° F
  • Outer Material: 20 Ripstop Nylon with DWR coating
  • Insulation: Synthetic 140 GSM fill rated down to 40 degrees
  • Capacity: 500 lbs
  • Weight: 29 oz / 822 g
  • Unfolded Dimensions (blanket): 5’4” x 6’8”
  • Sleeping Bag Dimensions: 2'2" x 6'8"
  • Packed Size: 7.5” x 15”

Hammock Warning

Customer Reviews

Based on 19 reviews
Tanya Martinez (San Jose, CA)
Nice blanket. Poor customer service

The blanket I ordered arrived defective with a detached pullstring in the hood. I’ve emailed customer service twice for help in the last month and have received no reply. Be mindful of this when you buy from Grand Trunk.


It was a gift for my grandson. I haven’t talked with him.

Heidi C (Mississauga, ON)
Great product, tight squeeze for 2X-3X

I'm not sure why I thought the weight rating (" capacity: 500 lbs. ") was for how big a person would fit comfortably, completely the zipped-up ThermaQuilt, but it was a tight fit for me (2x-3x), leaving little to no room to move in the torso region and no 360-degree coverage.

I left the quilt zipped over my legs and needed a second blanket to keep warm as it could not be zipped up to my shoulders, so it felt more like a ThermaQuilt 270.

My solution? I still like the product, so I bought a second ThermaQuilt on sale and will be sewing it into a wedge shape so I can enjoy my plus-size hammock camping adventures without being squeezed.

Lisa Briers (Wimberley, TX)
Love this item!

As a camper who lives in Texas, this is the perfect weight for most of our trips. I bought one for me earlier in the year, and love it so much, I just bought this one for my husband.

Courtney Rivers (Chapel Hill, NC)

360° ThermaQuilt 3-in-1 Blanket, Sleeping Bag & Hammock Underquilt